add devcontainer_example.json

devcontainer_example.json

+{
+    "name": "LaTex",
+    "workspaceFolder": "/workdir",
+    "workspaceMount": "source=${localWorkspaceFolder},target=/workdir,type=bind,consistency=delegated",
+    "remoteUser": "vscode",
+    "image": "andrijoos/devcontainer-latex:latest",
+    "customizations": {
+        "vscode": {
+            "extensions": [
+                "James-Yu.latex-workshop"
+            ]
+        }
+    }
+}